Vacuum cleaner



May 31, 1932. T. E. D. BILDE VACUUM CLEANER Filed Jan. 7, 1930 Patented May 31, 1932 UNITED STATES PATENT OFFICE TORD ERIK DANIEL BILDE, OF STOCKHOLM, flwEDEN', ASSIGNOR, BY MERE ASSIGN- MENTS, '1'0 ELECTROLUX CORPORATION, A CORPORATION OF DELAWARE vacuum CLEANER Application filed January 7, 1980, Serial No.

My invention relates to the vacuum cleaner art and more particularly to electrically operated vacuum cleaners of the. domestic ty e. g

y major object of the invention'consists in the provision of rods orthe like, preferably metallic. and resilient, arranged between the motor-fan aggre ate and the casing of the cleaner and axial y with respect to the motor to form a resilient and sound deadening support for said aggregate v A still further object of my invention is to provide a vacuum cleaner in which the motor-fan aggregate is supported resiliently and is electrically insulated from the casing of the cleaner.

Further objects and the nature and advantages of my invention willbecome apparent from consideration ofthe following descrip tion taken in conjunction with the accofnpanying drawings showing three embodiments of the invention.

In the accompanying drawings Fig. 1 is an elevational view, chiefly ,in section, I of the 2| rear end of a vacuum cleaner according to the invention, Fig. 2 is a cross section along the line 2-2 of Fig. 1, and Figs. 3 and 4 are two'modifications of the supporting arrangement for the motor-fan aggregate. 80

,nates a cylindrical casing, which is supported bya runner arrangement 11 so that, when the supporting surface, is horizontal, the axis of the casing is horizontal. A' removable cap -12 forms the right end (Fig. 1) of the cleaner.

In the pressure chamber, a fan 14 and the driving motor 15 for the fan are arranged. At the front and rear ends of the housing of motor 15, projections or lugs 16 are provided, which may be cast in one piece with said housing. Rods or ;,the like 17 are fixed b to lugs 16, said rods .or the like being advan- 'tageously manufactured of spring steel. They may be so made as to provide an electrically non-conducting path. If the rods or springs are manufactured of metal, they may be provided witha layer or coating of electrically insulating material. Rods 17 are di- In the figures, reference character 10 desig- A partition 13 divides casing 10 into a pressure chamber and a vacuum chamber.-

screws 21 may be omitted. Members 23 are 419,053, and in Germany January 15, 1929.

mensioned in such manner that the same have a certain resiliency in relation to the motor fan aggregate. In casing 10, aring 18 advantageously manufactured of electrically insulating material such as rubber, hard rubber or like composition is secured by means of screws 19 or the like. Ring 18 is provided with a number of supporting members or lugs 20 extending into the casin which are axiall apertured to receive the ro s. In the embodlment shown in Figs. 1 and 2 there are three such members 20. Rods 17, as is evident from the drawings, pass through the members 20, which serve as supports for said rods. Projections 16 are placed in such manner on the housing of motor 15 that the transverse vertical plane through the center of gravity and the middle points of rods 17 intersect. The motor-fan aggregate is supported by members 20 at or near these points. Set screws 21 prevent axial movement of the motor-fan aggregate relative to casing 101 If the rods 17 are manufactured of metal and not provided with any electrically insulating coating, plugs 22 of electrically insulating material are pro- 15 vided to cover the screws.

From the above it will be evident that the motor-fan aggregate is resiliently supported within casing 10 and by means of rods that the motor-fan aggregate is electrically insulated from all parts of the cleaner which may be touched by the operator during operation.

In the embodiment shown in Fig. 3, rods 17 are provided with apertured members 23 extending between projections 16 and members 20, and adapted to limit the axial movement of the motor-fan aggregate in relation to casing 10, should screws 21, for any reason have become loose. In this construction,

preferably manufactured of any resilient and electr 'ically insulatingmaterial such as rubf Fig. 4 shows a further embodiment, in. which the housing of motor 15 is provided with projections .16 at oneend only, so that the'elastic rods 17 are connected with said housing at one end only, i. e. the rods are connected at one end to projections 16 whereas the other end is supported by members 20 in the same manner as shown in Figs. 1, 2 and 3.

The rods or the like 17 may in a modified embodiment be secured to ring 18 and the housing of motor 15 may be provided with members corresponding to members 20.

What I claim is: y

1. In a vacuum cleaner, a cylindrical casing, a motor, and a plurality of resilient metal rods axially disposed with respect to said motor and extending betweensaid motor and said casing for supporting the motor in the casin 2. n a vacuum cleaner, a casing, a motor in said casing and a cantilever suspension for the motor in the casing comprising a plurality of resilient metal rods secured at one end to said motor and at the other end to said casing and extending axially with respect to said motor.

3. In a vacuum cleaner, a cylindrical casing, a motor and means for mounting the motor axiall in the casing comprising a plurality of resilient rods attached to the motor and extending axially with respect to the' motor, and lugs extending inwardly from the casing having apertures in alignment'with and receiving said rods, portions of each rod being'tree to yield between the lugs and the motor. 1

4. In a vacuum cleaner, a cylindrical casing, a motor and means for mounting the motor axially in the casing comprising a plurality of resilient rods attached to the motor and extending axially with respect to the motor, and In S extending inwardly from the casing having apertures in alignment with and receiving said rods, a portion of each rod being free to yield between the lugs and the motor.

5. In a vacuum cleaner, a cylindrical casing, a ring of insulating material in said cas-' ing, a motor, and means for mounting the A motor on said ring'comprising a plurality of resilient rods attached to the motor and extending axially with respect to the motor, and lugs extending inwardly from the ring having apertures in alignment with and recelving said rods, portions of the rods being free to yield between the lugs and the motor. 6 In a vacuum cleaner, a cylindrical casmg, a motor and means for mounting the motor axially in the casing comprising a plurality of resilient members held by the motor and extending axially with respect to the motor, and lugs extending'inwardly from the casing having apertures in alignment with and receiving said members, portions of the members being free to yield between the lugs and the motor and resilient elements surrounding the y-ieldable portions of said members and extending between said lugs and said motor. w L

7. In' a vacuum cleaner, a'cylindrical casing, a motor and means for mounting the motor axially in the casing comprising a plurality of resilient members held by the motor and extending axially with respect to the motor, and lugs of insulating material ex-. tending inwardly from the casing having apertures in alignment with and receiving said members, portions of said members being ment with and receiving said members, portions of each of said members being'free to yield between the lugs and the motor and pieces of rubber surroundin the yieldable portions of said members and extending between said lugs and said motor.

9. In a vacuum cleaner, a cylindrical casing, means for supporting said casing in horizontal position above a horizontal surface, a motor, and means for mounting the motor axially in the casing comprisin a plurality of resilient metallic members held by said motor and extending axially of the motor and the casing, a ring of electric insulation material disposed circumferentially of said casing, and lugs extending inwardly from saidring having apertures in alignment with and receiving'said members, portions of said members being free to yield between the lugs and the motor.

10. In a vacuum cleaner, a cylindrical casing, means'for supporting said casing in horizontal position above a horizontal surface, a motor, and means for mounting the motor axially in the casing comprising pairs of axially spaced lugs extending outwardly from said motor, a plurality of resilient metallic members held by said lugs and extending axially' of the motor and the casing, a ring of electric insulation material disposed circumferentially of said casing, and lugs extending inwardly from said ring having apertures in alignment with and receivin said members between the first-mentione lugs,'the inwardly projecting lugs being disposed in substantially the same vertical transverse plane as the center of gravity of;

the motor, portions of said members being 'free to yield between the lugs.

11. In a vacuum cleaner, a cylindrical casing, means for supporting said casing horizontally above a horizontal surface, a motor, and means for mounting the motor axially in the casing comprising a plurality of me-' tallic resilient members held by the motor and extending axially with respect to the motor and thecasing, and supporting means extending inwardly from the casing having apertures extending axially of the casing an inalignment with and receiving said members, portions of said members being free to yield between motor.

12. In a vacuum cleaner, a cylindrical casing, means for supporting said casing horizontally above'a horizontal surface, a motor, and a plurality of resilient members comprising metal rods axially disposed with res ect to said motor and said casing and exten ing between said motor and said casing for supporting the motor in the casing and having freely yieldable portions between the points of attachment to the casing and the motor.

13. In a Vacuum cleaner having a cylindrical casing, a motor, a housing therefor, and means for mounting said housing in said casing comprising a ring of insulating material extending circumferentially of said casing, and a plurality of metallic resilient members spaced circumferentially of the casing and interconnecting said ring with said housing.

In testimony whereof I have affixed my signature.

TORD ERIK DANIEL BILDE.

the supporting means and the 

